Yeah I think I will be cleaning my bike more frequently from now on (monthly at the very least). Up until now, I would only clean the drivetrain 2-3 times per year. Considering the fact that I ride everyday, on all kinds of terrain, and during the winter/rainy season, I can see why I have to replace things more frequently. I did a teardown.tuning of my drivetrain this weekend and its crazy how much crap gets caked on the sprockets and chains in a short time.